Tunneling-carriage.



R. S. CARTER.

TUNNELING CARRIAGE.

APPLICATION IILED'AUG. 1a, 1910.

Patented May 26, 1914.

3 SHEETSBHEET 1.

hw ki A l 1 R. S. CARTER.

TUNNELING CARRIAGE.

APPLIOATION FILED AUG. 18, 1910. 4

Patented May 26, 1914.

3 SHEETSSHEET 2.

R. S. CARTER.

TUNNELING CARRIAGE. APPLIOATION FILED AUG.18, 1910.

1,098,014. 7 v Patented May 26,1914

3 SHEETS-SHEET 3.

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STATES PATENT OFFICE. nUss nr. s. CARTER, or HEWLETT, NEW YORK, nssrenon'ro ING-ERSOLL-RAND COMPANY, on NEW YORK, N. in, A conrom'rron OF NEWJERSEY.

TUNNELDTG-GABRIAGE.

' Specification of Letters Patent.

Patented May 26, 1914.

Application filed August 18, 1910. Serial No. 577,854.

To all whom it may concern useful Improvements in Tunneling-Carriages,of which the following is a specificationr The object of this inventionis to provide certain improvements in the construction, form andarrangement of the several'parts of a tunneling carriage ,whereby theresults obtained'b the use of the improved car-- riage woul bematerially improved.

This invention consists in a tunneling carriage comprising one or moreof the following features: a truck, a beam pivoted to swing verticallythereon, a support movable along the beam and means for rigidlysupporting the beam without the use of counterbalanced weights, saidmeans comprising one or more braces arranged either to the front or tothe rear of the pivotal connection of the beam on the truck or at bothplaces, the brace or braces being arranged to be folded along the'beamfor convenience in transportation and the said braces being alsoadjustable to suit diiferent places, the rear bracebein arrangedtobeengaged with the roof 0 the tunnel and the front brace beingarranged to be engaged with the floor of the tunnel.

A further object is to provide a tunneling carriage in which the supportwhich travels along the'tilting-beam is arranged to carry a laterallyswinging drill bar so that the drill bar may be swung into sub-,

stantial alinement with the beam for convenience in transportation, thesupport also being movable to a point over the truck for convenience intransportation. A practical embodiment of the invention is representedin the accompanying drawin s, in which igure 1 represents the carriagein side elevation with the parts shown in full lines in one of theoperative positions of theicarriage and in dotted lines in anotherof itsoperative positions, the drills, drill bar and the drill bar supportbeing shown in broken lines in their inoperative folded position overthe truck, Fig. 2' is a top plan view of the carriage showing in fulllines the parts in the position which they assume when the carriage isin operation, the drills, drill bar and the drill .barsupport beingshown in broken lines in their folded position over the truck forpurposes of transportation, Fig. 3 is-a detail view showing the drillbar support and the parts carried thereby inposition for undercutting,Fig. 4

port not being shown, Fig. 5 is a detail longitudinal vertical sectionthrough the carriage showing more clearly the means for moving thesupport outwardly and inwardly along its beam, and Fig.6 is a'detailtransverse section taken in the plane of the line A-A of Fig. 1, lookingin the direction of the arrows.

The tunneling carriage includes a truck 1* having traction wheels 2,whereby the carriage may be moved into and out of 0sition for use. Thistruck is provided with a pair of uprising side frames 3, between whichthe drill supporting beam is pivot ally mounted intermediate its ends,to swing vertically. This beam comprises two members 4 spaced apart,each of which is provided with outwardly extended flanges 5 along itstop and bottom edges.

A suitable support, such as a drill bar' support 6, is fitted to moveinwardly and outwardly along the front extension of the rear end of thebeam, a pulley 10 is mounted. Between the side frames 3 of. the truck,be-

low the beam 4, a pulley 11 and a' winding drum 12 are mounted. Thiswinding drum 12, in the present instance, is rotated by hand asfollowszThe shaft 13 of the winding drum is provided 'with'a spur gear14:,

ble connection 13 leads from the support 6 is a rear end view of thecarriage thesuparound the pulley 9 and from thence rearwardly around thepulley 11, one or more times around the drum 12, around the pulley 11,from thence rearwardly to and around the pulley 10 and from thenceforwardly into engagement with the said support. In

the present instance, a drill bar 19 is shown.

tended to move the drill bar inwardly to a.

point over the carriage truck and fold the same into substantialalinement with the beam for purposes of transportation. A series of rockdrills 21 are shown mounted on the drill bar 19 in the usual manner. Anadjustable folding brace 22 is hinged at 23, at the endof the rearextension of the beam 4, which brace is provided at its outer end withafoot 24 arranged to engage the roof of the tunnel when the brace isswung upwardly into its operative position. This brace is furtherprovided with an adjusting nut 25 for extending and contracting thebrace for bringing it into and out of en agement with the roof and forholding the am in' its proper vertical adjustment. brace may be foldeddown into substantial alinement with the beam 4, for purposes oftransportation. A similar adjustable folding brace 26 is hinged at 27,to the front extension of the beam 1, which brace is provided with afoot 28 arranged to be brought into and out of engagement with the floorof the tunnel by means of a nut 29. This nut 29 also serves to adjustthe length of the brace 26 to coact with the brace 22 to rigidly holdthe beam 4: in its desired adjustment. The adjustable brace 26 may beheld in its folded position along the under side of the beam 4, as, forinstance, by a. chain 30. Chains 31and 32 depending from the rearandfront extensions of the beam 4, are arranged to be engaged withbrackets 33, 34, on the truck 1, when the parts are in their foldedposition ready for transportation, for the purpose of holding the beamagainst tilting on the truck. A clamp screw 35 is carried by the support6 in position to clamp the support to and release it from the beam.

When the tunneling carriage is used in connection with a gang of rockdrills, the operation is as follows: Presupposing the parts to be intheir folded position, the carriage is moved into the proper positionwith respect to the work to be operated upon.- The chains 31 and 32 arereleased from their A engagement with the brackets 33, 34. The brace 22is swung upwardly into a substantially vertical position and the brace26 is released and swung downwardly into a sub- This stantially verticalposition. These two braces are then adjusted one with respect to theother until the beam 4 has been brought into the'desired position. Thedrill bar is then swung around on its support until it assumes aposition substantially at right angles to the beam 4. The screw clamp 35is then released. The support is then moved outwardly along the frontextension of the beam by the operation of the crank handle 17. When thesuppoit reaches its desired position, it is locked there by the clampscrew 35. The extension feet 20 of the drill bar are then brought intoengagement'with the side walls of the tunnel. When it is desired totransport the carriage to some other point, the

clamp screw 35 is released and the extension feet 20 of the drill bar 19are released from their engagement with the side walls of the tunnel.The support 6 is moved inwardly into a position over the truck 1 and thesupport is secured in position by the clamp The drill bar is then swungaround into substantial alinement with the beam 4:. The braces 22 and 26are then released from their engagement with the roof and floor of thetunnel and folded along the beam 47. The chains 31 and 32 are engagedwith the brackets 33, 34, on the true While .I have shown the tunnelingcarria'ge in connection with a gang of rock drills, it is to beunderstood that the support on the beam may be used for other purposesthan for carrying rock drills. It is also evident that various changesmight be resorted to 'in the construction, form and arrangement of theseveral parts without departing from the spirit and scope of myinvention; hence I do not wish to limit myself strictly to the structureherein set forth, but

What I claim is l. A tunneling carriage comprising a truck, ahorizontally arranged beam carried thereby and extended to the front andrear thereof and a drill bar pivoted on the beam to swing laterally withrespect thereto.

2. A tunneling carriage comprising a truck, a horizontally arranged beamcar ried thereby and extended to the front and rear thereof and a drillbar laterally with respect to the beam and movable outwardly andinwardly along the same. I

3. A tunneling carriage comprising a truck, a horizontally arranged beamcarried thereby and extended to the front and rear thereof, a drill barpivoted to swing laterally with respect to the beamand means for movingthe drill bar outwardly and inwardly along the beam.

4:. A tunneling carriage comprising a truck, ahorizontallyarrange beamcar ried thereby and extended to t e front and rear thereof, a drill barpivoted to swing laterally. with respect to the beam and pivoted toswing cally on the truck and extended to the front and rear thereof, asupport on the beam and means on the truck connected to the sup-- portfor moving it outwardly and inwardly along the beam.

6. A tunneling carriage comprising a truck, a horizontally arranged beamcarried thereby, a support on the beam, a drill bar pivoted to swinglaterally on said support and means for moving the support outwardly andinwardly along the beam.

7 A tunneling carriage comprising a truck, a horizontally arranged beamcarried thereby, a support on the beam, a drill bar pivoted to swinglaterally on the support and means on the truck connected to the supportfor moving it outwardly and inwardly along the beam.

8. A tunneling carriage comprising a truck, a horizontally arrangedbeam' pivoted intermediate its ends to swing vertically on the taiuckand extended to the front and rear thereof, and an uprising brace car-vried by the rear extension of the beam arranged to engage/an overheadsupport.

9. A tunneling carriage comprising a truck, a horizontally arranged beampivoted intermediate its ends to .swing vertically onthe truck andextended to the front and rear thereof, and an uprising folding bracehinged to the rear extension of the beam arranged to engage an overheadsupport and arranged to be folded along the earn.

10. .A tunneling carriage comprising a truck, a horizontally arrangedbealn pivoted intermediate its ends to swing vertically on the truck andextended to the front and rear thereof, and a depending brace carried bythe front extension of the beam arranged to engage an underneathsupport.

11. A tunneling machine comprising a truck, a horizontally arranged beampivoted intermediate its ends to swing-vertically on the truckandextended to the front and rear thereof, and a depending folding bracehinged to the front extension of the beam arranged to engage anunderneath support and arranged to be folded along the beam.

'12. A tunneling carriage comprisinga truck, a horizontally arrangedbeam pivoted intermediate its ends to swing vertically on the truck andextended to the front and rear thereof, an uprising brace carried by therear extension of .the beam and a depending brace carried by the frontexten sion of the beam.

13. A tunneling carriage comprising a truck, a horizontallyarranged beampivoted intermediate its ends to swing vertically on the truck andextended to the front and rear thereof, an uprising folding bracecarried by the rear extension of the beam and a depending folding bracecarried by the front extension of the beam, said braces being arrangedto be folded along the beam.

14. A tunneling carriage comprising a truck, a horizontally arrangedbeam pivoted intermediate its ends to swing vertically on the truck andextended to the front and rear thereof, an uprising brace carried by therear extension of the beam, a depending brace carried by the frontextension of thebeam and a support movable along the beam.'

15. A tunneling carriage comprising a truck, a horizontally arrangedbeam pivoted intermediate its ends to swing verti-.

cally on the truek, an uprising brace for the rear extension of thebeam, a depending brace for the front extension of the beam, a supportmovable along the beam' and a drill bar pivoted to swing laterally onsaid support into different angula'r positions with respect to the beam.

In testimony that I claim the foregoing as my invention, I have signedmy name in presence of two witnesses this sixteenth day of August, 1910.1

RUSSELL S. CARTER. Witnesses: i

F. GEORGE BARRY, 'C. S. SUNDGREN.

